I'm here to suggest putting Dig on Leafeon
I know it sounds stupid but in a Metagame that has Dynamax in it Leafeon would greatly benefit from a Ground Type move like Dig. Dig not only lets you bypass annyoing fire type pokemon but also Steel types which are often a brick wall for leafeon to deal with even after you got a couple of swords dance boosts up.
Leafeon's current Movepool in gen 8 Randombattles is a little bit lacking and really struggles against Fire&Steel types
Double-Edge,
Knock Off,
Leaf Blade,
Swords Dance,
Synthesis,
X-Scissor
Your best bet against fire&Steel types is knock off - a 97BP move which isnt stab and looses its Boost after using it once.
Most of the times you want to dynamax your Leafeon after you got a Swords dance of, especially because Leafeon has such a great speed tier in Randombattles (217, when sun is up 434)
Another Problem about Leafeon is that it has very bad Special defense but with Max Quake boosting your Sp.def you can avoid being OhKOd or 2 Hit KO'D by strong special attackers.
I can really see a Life Orb Leafeon putting in a lot of work and Sweeping through Teams with the addition of Dig to its Movepool.
Since Leafeon has such a great Defense Stat you're almost guaranteed to get a Swords Dance of against a physical attacker. And even if your Dynamax is over you still have a Ground type attack that can hit Fire/Steels - Dig is not useless outside of Dynamax and definetely superior to X-Scissor!
Here are some Calcs to prove that Dig Leafeon is very strong after it got a Swords Dance up and can even OHKO other dynamax Pokemon:
1. +2 Lvl 88 84 Atk Life Orb Leafeon Max Quake vs. Lvl 80 84 HP / 84 Def Dynamax Heatran: 967-1139 (174.5 - 205.5%) -- guaranteed OHKO
2. +2 Lvl 88 84 Atk Life Orb Leafeon Max Quake vs. Lvl 80 84 HP / 84 Def Dynamax Excadrill: 733-863 (119.3 - 140.5%) -- guaranteed OHKO
3. Lvl 88 84 Atk Life Orb Leafeon Max Quake vs. Lvl 72 84 HP / 84 Def Zacian-Crowned: 250-296 (99.6 - 117.9%) -- 93.8% chance to OHKO
4. +2 Lvl 88 84 Atk Life Orb Leafeon Max Quake vs. Lvl 82 84 HP / 84 Def Dynamax Incineroar: 533-629 (91.8 - 108.4%) -- 50% chance to OHKO
5. +2 Lvl 88 84 Atk Life Orb Leafeon Max Quake vs. Lvl 72 84 HP / 84 Def Dynamax Reshiram: 559-660 (106.2 - 125.4%) -- guaranteed OHKO
Keep in mind these are just a couple of examples and of course not all steel and fire types get Ohkod by a boosted Max Quake from Leafeon.
Lastly you might think that Dig is a useless move because it takes 2 turns to use but I'd like to mention that there is one more Pokemon in randombattles who also has a 2 turn move and It's mostly because it can use It's Max-Move with it - Landorus-Therian (And Gyarados with Bounce as well - works similar to Lando-T).
Of course Lando-T gets the Stab boost on Max airstream and Fly + a Speed boost from Max Airstream but this should still prove my point that 2-turn moves are not necessarily bad in Randombattles.
Also a little bonus from using a 2 turn move like Dig or Fly is that you can Stall a turn of dynamax from your opponents Pokemon.